Two coupled coils have self inductances L1 = 10 mH and L2 = 20 mH. The co-efficient of coupling (K) being 0.75 in the air. Voltage in the second coil when the current in circuit is given by I = 2 sin (314t) A is . . . . . . . .
A. 3.14cos(314t) V
B. 3.33sin(314t) V
C. 6.66cos(314t) V
D. 6.28cos(314t) V
Answer: Option C
Related Questions on Network Theory and Analysis
A. Negative
B. Positive
C. Determined by battery e.m.f.
D. Zero
The number of independent equations to solve a network is equal to
A. The number of chords
B. The number of branches
C. Sum of the number of branches and chords
D. Sum of number of branches, chords and nodes
A closed path made by several branches of the network is known as
A. Branch
B. Loop
C. Circuit
D. Junction
Which of the following is not a nonlinear element ?
A. Gas diode
B. Heater coil
C. Tunnel diode
D. Electric arc

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